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  1. MariaDB Server
  2. MDEV-13508

ALTER TABLE that renames columns and CHECK constraints

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    Description

      If a column is renamed, CHECK constraint isn't changed to use the new column name. But UNIQUE constraint is.

      create table t1 (a int, b int, check(a>b));
      		 
      alter table t1 change column a b int, change column b a int;
      		 
      show create table t1;

      Compare with

      create table t1 (a int, b int, unique(a,b));
      		 
      alter table t1 change column a b int, change column b a int;
      		 
      show create table t1;

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-16161 Syntax error reserverd keyword

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-11114 Cannot drop column referenced by CHECK constraint

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-22881 Unexpected errors, corrupt output, Valgrind / ASAN errors in Item_ident::print or append_identifier

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              monty Michael Widenius
              serg Sergei Golubchik
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              Dates

                Created:
                Updated:
                Resolved:

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